<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <input id="input" type="text" style="width: 300px;">
    <div id="content" style="color: blue; margin-top: 10px;"></div>
    <script>
        window.onload = function () {
            const data = { value: ''}

            Object.defineProperty(data, 'value', {
                set: (value) => {
                    const content = document.getElementById('content')
                    content.innerHTML = value
                }
            })

            const input = document.getElementById("input")
            input.addEventListener('input', (e) => {
                data.value = input.value
            })
        }
    </script>
</body>
</html>